Tarek, just change your profile availability so that it says you're unavailable until the day you come back. You will not be suspended but your profile will be set to private so when you return, you can request that your proposal be set to public.
Here's an article about setting Availability: https://support.upwork.com/hc/en-us/articles/211063008-Set-Your-Availability
And here's an article about profile set private, which has a button to click that will set it back to private, I believe:
"No good deed goes unpunished." -- Clare Boothe Luce